KR100858886B1 - Caterpillar tensioner - Google Patents

Abstract

The present invention relates to a caterpillar tension control device which is moved in the inner surface of the caterpillar to correspond to the tension of the caterpillar to prevent the caterpillar deviation, for this purpose in the tension control device for preventing the caterpillar from the track, A frame formed with a guide groove oriented in a direction; and a moving plate having a length relatively smaller than the length of the guide groove so that the guide groove is inserted into the guide groove so as to move forward and backward on the guide groove. Wheels rotatably coupled to the plate to support the inner surface of the caterpillar; and tension-maintaining means coupled to the inner end of the moving plate to maintain the tension by moving the wheel in accordance with the sagging of the caterpillar; Is made, the tension holding means is fixed to the inside of the frame so as not to be exposed to the outside of the frame, the frame And at least one guide rail to guide the movement of the moving plate to the inside, the guide rail characterized in that the mobile plate is accompanied movement in close contact with the mobile plate comprising combined sliding.

Description

Caterpillar tension control device {A tension controlling device for caterpillar}

1 is a block diagram of a crawler tension control device of the present invention,

2 is a side view of FIG. 1;

3 is a perspective view of the caterpillar tension adjusting device except for the frame in FIG.

4 is an exploded perspective view of the tension adjusting means extracted from FIGS. 1 and 3;

5 is a conceptual diagram showing the tension control of the tension adjusting means according to the stopper of FIG.

6 is an operation of the crawler tension control device according to Figure 3,

7 is an operating state diagram of the crawler tension control device according to FIG.

<Description of the symbols for the main parts of the drawings>

10: frame 11: guide groove

12: Bracket

20: moving plate 21: first plate

22: second plate 23; 3rd plate

231: plate

31: guide rail 32: moving plate

40: tension holding means 41: cylinder

42: load 421: stopper

422: jamming jaw

43: coil spring 44: cap

51: idle wheel 52: driving wheel

M: driving means

60: caterpillar

100: caterpillar tension control device

The present invention relates to a caterpillar tension control device of the structure that can automatically adjust the tension of the caterpillar corresponding to the tension of the caterpillar, more specifically, the wheel for supporting the inner surface of the caterpillar when the caterpillar tension is weakened The tension control means of the structure provided in the inside of the frame is a tension maintaining means that can be moved to return the tension of the caterpillar to its original state.

In general, a crawler equipped with a caterpillar is put in a place that is difficult to drive with wheels such as a dirt road, a mountain road, a rocky road.

Therefore, since the moving means equipped with the caterpillar is put in a narrow place with obstacles, breakage of the caterpillar occurs frequently.

The main cause of such caterpillar failure is the tension of the caterpillar is weakened and the caterpillar is pulled off the wheel.

In addition, in recent years, the endless track installed in the unmanned robot is a structure in which the shape of the endless track is variable in response to the obstacles of the road. This variable track is well represented in the variable track type mobile system (Patent No. 10-596483) published on July 3, 2006.

However, in the case of the variable track type moving system, when the endless track is variable, the distance between the shaft and the inside of the track changes, so the tension of the endless track is weakened, so that the track is separated from the wheel.

Therefore, after a long time, the caterpillar tension control device is required to prevent the tension is weakened, or in the case of the caterpillar that changes in real time in accordance with the track change of the caterpillar.

The present invention has been made in view of the above problems, an object of the present invention is to maintain the tension to return the tension of the caterpillar to the original state by moving the wheel supporting the inner surface of the caterpillar when the caterpillar tension is weak The means is to provide a caterpillar tension control device of the structure provided inside the frame.

Furthermore, an object of the present invention is a trackless tension control device that can prevent the tension of the crawler after a long time is weak, or in the case of a trackless track that is variable in real time to weaken the tension according to the change of track of the track To provide.

The caterpillar tension control device of the present invention for solving the above technical problem,

In the tension control device for preventing the deviation of the caterpillar,

In the tension control device for preventing the departure of the caterpillar, the frame formed with the guide groove inclined in the driving direction; and is formed to be inserted in correspondence to the guide groove, the guide groove of the guide groove to be moved back and forth on the guide groove A moving plate having a length relatively smaller than the length; and a wheel rotatably coupled to the moving plate to support the inner surface of the caterpillar; and to maintain tension by moving the wheel according to the sagging of the caterpillar. Tension holding means coupled to an inner end of the moving plate, wherein the tension holding means is fixed to the inside of the frame so as not to be exposed to the outside of the frame, and the frame guides the movement of the moving plate to the inside. At least one guide rail is attached so that the guide rail may be in close contact with the moving plate. A mobile plate that is achieved by an endless track tensioning device, characterized in that the sliding coupling is constituted.

The invention will become more apparent through the preferred embodiments described below with reference to the accompanying drawings. Hereinafter will be described in detail to enable those skilled in the art to easily understand and reproduce through embodiments of the present invention.

1 is a configuration of the crawler tension control device of the present invention, Figure 2 is a side view of Figure 1, Figure 3 is a perspective view of the crawler tension control device except the frame in Figure 1, Figure 4 and Figures 1 and Figure Figure 3 is an exploded perspective view of the tension adjusting means extracted in Figure 3, Figure 5 is a conceptual diagram showing the tension control of the tension adjusting means according to the stopper of FIG.

As shown in Figures 1 to 5, when the tension of the caterpillar 60 is weakened, the tension of the caterpillar 60 is automatically adjusted by automatically adjusting the axial distance of the wheel supporting the inner surface of the caterpillar 60. It relates to a caterpillar tension control device 100 of the structure provided in the frame 10 has a tension maintaining means 40 that can be returned to its original state.

The caterpillar tension control device 100 is composed of three parts, which is a frame 10 is installed in the track 60 parallel to both sides, and is installed on the side of the frame 10 with the wheel Comprising a moving plate 20 and the tension holding means 40 for maintaining the tension of the endless track 60 by forcibly moving the moving plate 20.

Here, the frame 10 supports the overall shape, and may be formed in various shapes as necessary, and the shape may be formed in various shapes such as a square, a ladder, a circle, a hexagon, and the like. Inside the frame 10 is a structure in which a driving means (M) for providing a driving force to the driving wheel 52 is built.

In addition, the frame 10 has a structure in which the guide groove 11 is formed to be biased in the driving direction.

The guide groove 11 is formed long along the longitudinal direction of the frame 10, and is formed in a portion corresponding to the driving wheel 52 or the idle wheel 51, and thus the driving wheel 52 or the idle wheel 51. It is formed according to the position of.

In the present invention, the guide groove 11 is formed to be biased in the driving direction so as to be formed in the portion corresponding to the idle wheel (51).

In addition, the frame 10 is attached to at least one guide rail 31 to guide the movement of the moving plate 20 to the inner wall, the guide rail 31 is in close contact with the moving plate 20. The movable plate 32 which is moved together is configured by sliding coupling. The guide rail 31 and the movable plate 32 serves to guide the linear movement of the movable plate 20.

In addition, the moving plate 20 is formed to correspond to the guide groove 11 is formed, the structure having a relatively smaller length than the guide groove 11 to be moved forward / backward on the guide groove (11).

The movable plate 20 has a first plate 21 inserted into the guide groove 11 while the idle wheel 51 is rotatably coupled thereto, and a guide coupled to the inner side of the frame 10 during movement. In order to avoid interference between the rail 31 and the movable plate 32, the second plate 22 which is bent in the inward direction of the frame 10, and the movable plate 32 extends horizontally to the second plate 22. It is composed of a third plate 23 is fixed in close contact with the upper surface of the movable plate 32 to be accompanied.

Here, the third plate 23 of the movable plate 20 is configured to be coupled to the end plate 231 to the end to be coupled to the tension maintaining means (40). The close plate 231 serves as a medium for transmitting the tension of the tension maintaining means (40).

In addition, the tension maintaining means 40 is a structure that works with the moving plate (20).

The structure of the tension maintaining means 40 is a cylinder 41 fixed to the bracket 12 provided inside the frame 10, and the sealing plate 231 of the moving plate 20 inserted into the cylinder 41. The rod 42 is coupled to the rod, the coil spring 43 arranged on the rod 42 to impart the tension, and the cylinder 41 of the cylinder 41 to prevent the coil spring 43 from being separated and to maintain the tension. Cap 44 is fastened to the end, and the stopper 421 is coupled to the end of the rod 42 to adjust the tension.

In this case, the rod 42 has a locking jaw 422 formed in the middle, and functions to be embedded in the cylinder 41 in a state in which the coil spring 43 is compressed.

And the stopper 421 is fastened to the end of the rod 42 serves to adjust the tension by adjusting the compression state of the coil spring 43. This is possible by adjusting the exposure length of the rod 42 about the cylinder 41.

Referring to FIG. 5, the tension adjustment will be described. When the stopper 421 coupled to the end of the rod 42 is fastened to the inner side of the rod 42, the length of the rod 42 penetrated by the mill plate 231 is described. As the length of the rod 42 entering the cylinder 41 becomes shorter, the compression state of the coil spring 43 compressed inside the cylinder 41 is released, and the elastic force is weakened. When the rod is fastened to the end of the rod 42, the length of the rod penetrating into the mill plate 231 is shortened, and the length of the rod 42 entering the cylinder 41 is increased. This is because the coil spring 43 is further compressed to increase elasticity.

Meanwhile, the compressive force and the elastic return force of the coil spring 43 may vary depending on the size or scale of the endless track 60.

In addition, the tension maintaining means 40 can be used by replacing the hydraulic piston in the case of the endless track 60 of heavy equipment.

6 is an operation of the crawler tension control device according to Figure 3, Figure 7 is an operating state diagram of the crawler tension control device according to FIG.

As shown in Figures 6 and 7, the crawler tension control device 100 is always applied to the idle wheel 51 to be moved in the outward direction of the track.

This structure is such that when the length of the shaft between the idle wheel 51 and the traveling wheel 52 is shorter than the length of the crawler track 60, the idle wheel 51 is moved outward to increase the tension of the crawler track 60. It is a structure that maintains constant tension.

If the distance between the idle wheel and the driving wheel is shorter than the length of the caterpillar, the tension of the caterpillar 60 is weakened. Then, the compression of the coil spring 43 embedded in the cylinder 41 of the tension holding means 40 is released and pushes the rod 42 while returning elastically, whereby the rod 42 of the movable plate 20 The moving plate 20 is moved on the guide groove 11 by the medium plate 231.

At this time, since the third plate 23 of the movable plate 20 is fixed to the movable plate 32 slidingly coupled to the guide rail 31, the movable plate 20 can be accurately moved on a horizontal line. Provide structure.

Then, the idle wheel 51 coupled to the first plate of the movable plate 20 is also moved outward to keep the loose tension of the endless track 60 taut to prevent departure of the endless track 60.

As described above, according to the caterpillar tension control device according to the present invention, the caterpillar can maintain a constant tension at all times, there is an effect that can be more stable running.

In addition, after a long time, the tension of the caterpillar is weakened, or in the case of the caterpillar that is variable in real time is characterized in that the tension can be prevented from weakening due to the change in the track of the caterpillar.

In addition, when the caterpillar sag occurs, there is an advantage that the tension of the caterpillar can be adjusted without departing from the caterpillar.

In addition, in the case of heavy equipment, there is an advantage that can reduce the downtime of the heavy equipment due to the sagging of the caterpillar.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, various other modifications and variations may be made without departing from the spirit and scope of the invention. Accordingly, it is intended that the appended claims cover such modifications and variations as fall within the true scope of the invention.

Claims (5)

In the tension control device for preventing the deviation of the caterpillar, A frame 10 in which the guide groove 11 is formed to be biased in the driving direction; A moving plate 20 which is formed to correspond to the guide groove 11 and is inserted into the guide groove 11 and has a length relatively smaller than the length of the guide groove 11 so as to move forward and backward on the guide groove 11; A wheel rotatably coupled to the movable plate 20 to support an inner surface of the crawler track 60; The tension maintaining means 40 is coupled to the inner end of the moving plate 20 so as to maintain the tension by moving the wheel as the sag 60 is sagging; The tension maintaining means 40 is fixed to the inside of the frame 10 so as not to be exposed to the outside of the frame.  At least one guide rail 31 is attached to the frame 10 to guide the movement of the movable plate 20 inward, and the guide rail 31 is closely attached to the movable plate 20. The caterpillar tension control device, characterized in that the movable moving plate 32 is configured by sliding coupling. delete The method of claim 1, The movable plate 20 includes a first plate 21 inserted into the guide groove 11 in a state in which the wheel is rotatably coupled, and a guide rail 31 coupled to the inside of the frame 10 and a movable type when the wheel is moved. In order to avoid interference of the plate 32, the second plate 22 which is bent in the inward direction of the frame 10, and the movable type so as to move along with the movable plate 32 to extend horizontally to the second plate 22 Endless track tension adjusting device, characterized in that consisting of a third plate 23 is fixed in close contact with the plate (32). The method of claim 3, wherein The third plate 23 of the moving plate 20 is an orbital tension control device characterized in that it further comprises a close plate (231) coupled to the end to be coupled to the tension holding means (40). The method of claim 1, The tension maintaining means 40 is a cylinder 41 fixed to the bracket 12 provided inside the frame 10 and a rod inserted into the cylinder 41 and coupled to an end of the moving plate 20. (42), a coil spring (43) arranged on the rod (42) to impart a tension, and a cap fastened to an end of the cylinder (41) to prevent separation and maintain tension of the coil spring (43). And a stopper (421) coupled to the end of the rod (42) to adjust tension.

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